Brush attachment for erasers.



H. J. SOMMERKAMP.

BRUSH ATTACHMENT FOR ERASERS. APPLICATION FILED MAR. 10. m5.

1 175,73. Patented Mai. 28, 1916.

struction shown therein, the reference 1111-* HENRY J. SOMMERKAMP, OFGLEN RIDGE, NEW JERSEY, ASSIGNOR IO CONSOLIDATED SAFETY PIN COMPANY, OFBLOOMFIELD, NEW JERSEY, A GOBPORATION OF NEW JERSEY.

To all whom it may concern:

Be it known that I, HENRY J. SoMMER- KAM'P, a citizen of the UnitedStates, residing in'Glen Ridge,,county of Essex, and Stateof New Jersey,have invented new and useful Improvements in Brush Attachments forErasers, of which the following is a specification. This inventionrelates to brush attachments for disk erasers, and has for its objectthe provisionof a readily removable attachment which 'is adapted to'-rigidly hold the brush block, the parts being preferably securedtogether without the employment of rivets, screws or other non-integralmeans for rigidly maintaining the parts in their assembled condition. 7

My invention is fully set forth in the accompanying specification anddrawing forming a partthereof in -which Figure 1' is an elevation of myattachment applied to a disk eraser; Fig.2 is a vertical centralsectionthereof; Fig. 3 is a plan view of a metal blank from which theframe of said attachment is constructed.

Referring to the drawings and the conmerals 1, 1' designate therespective lateral spring arms of a brush holder, the same beingprovided with offset bosses 2, 2, respectively, which are adapted tosnap into engagement with the central aperture, such as a of the diskeraser, as indicated by the reference letter I).

The arm 1' is provided with a lug or ear 3 which is adapted to envelopthe opposite arm 1 when the blank shown in Fi 3 has been shaped byfolding as shown in Figs.

'1 and 2, thereby it is possible without any rivets to securely lock theloop 4 formed by said folding or bending of the blank, and thebrushblock 5 which is adapted to snugly fit within said loop 4. Saidbrush block is provided with the usual horse hair or other bristles-cwhich project downwardly below said loop 4 and preferably a ortion ofsaid brush blockengaged by sai loop 4 is reduced so as to form collars6, 6'and thereby more-definitely prevent any lateral or verticalmovement of said brush within said loop. Obviously however these collarsmay be omitted, and if desired one orv more ribs (not 'shown) maybeformed on the inner. face of said loop 4, and'said brush Specificationof Letters Patent.

Application mac March 10, 1915. Serial m. 13,548;

' mwsn arracnmnm ro'nnaasnns.

Patented Mar. 28, 1916.

the holder may be co-extensive with the brush block in order to give amore finished I appearance to the article.

Various other modifications maybe made without departing from the spiritof my invention as herein claimed.

Anothertimportant feature of the invention resides in the fact that thebrush holder is offset with respect to the longitudinal axis of thearms, whereby a more convenient grip is provided which permits of themore convenient operation of said brush, and furthermore with the brushso arranged its longitudinal axis is practicall parallel to the verticaldiameter of the brus and to one side of said diameter when the saidbrush is held in vertical position,

whereby observation lof the surface to be stroked by said brush is madeeasier than were the axis of thebrush in direct alinement with thevertical diameter of the eraser when the same is held in a verticalposition as is the case in prior structures. Havmg thus descrlbed myinvention,

what I claim and desire to secure by Letters Patent is 1. A. brushholder for disk erasers consisting of a single strip of metal folded toform two substantially symmetrical arms extending parallel to oneanother and spaced apart sufliciently to permit of the same held in aposition parallel to said arms and off-set therefrom.

V .2. A brush holder for disk erasers consisting of a' single strip ofmetal folded to form two substantially symmetrical arms extendingiparallel to one another and spaced apart su ciently to permit of thesame spannmg a disk eraser, an ofi-set brush-socket formed by saidfolded portion of said strip, and State of-New Jersey, this 8th day ofand a (lirushhblock, firofvidiedi with a brush, March, 1915. inserte Witin sai 01 e ortion and rigidly secured therein, whereb? said brush ESOMMERKAMP' 5 is held in a. position vparallel to said arms Witnesses:and offset therefrom. C. G. BARTLETT, Jr.,

Signed at Bloomfield, county of Essex E. D. FARMER.

